What Registers Are Affected By MUL And Imul Instructions?
What Registers Are Affected By MUL And Imul Instructions? The MUL instruction multiplies unsigned numbers. IMUL multiplies signed numbers. For both instructions, one factor must be in the accumulator register (AL for 8-bit numbers, AX for 16-bit numbers, EAX for 32-bit numbers). What does Imul do in assembly? Description. The single-operand form of imul executes